{"id":199678,"date":"2025-05-06T10:24:06","date_gmt":"2025-05-06T02:24:06","guid":{"rendered":"https:\/\/server.hk\/cnblog\/199678\/"},"modified":"2025-05-06T10:24:06","modified_gmt":"2025-05-06T02:24:06","slug":"%e5%a6%82%e4%bd%95%e5%9c%a8mysql%e4%b8%ad%e5%88%a0%e9%99%a4%e5%ad%98%e5%82%a8%e8%bf%87%e7%a8%8b","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/199678\/","title":{"rendered":"\u5982\u4f55\u5728MySQL\u4e2d\u5220\u9664\u5b58\u50a8\u8fc7\u7a0b"},"content":{"rendered":"

<\/b> <\/p>\n

\u5982\u4f55\u5728MySQL\u4e2d\u5220\u9664\u5b58\u50a8\u8fc7\u7a0b<\/h1>\n

\u4e0d\u77e5\u9053\u5927\u5bb6\u662f\u5426\u719f\u6089\uff1f\u4eca\u5929\u6211\u5c06\u7ed9\u5927\u5bb6\u4ecb\u7ecd\uff0c\u8fd9\u7bc7\u6587\u7ae0\u4e3b\u8981\u4f1a\u8bb2\u5230\u7b49\u7b49\u77e5\u8bc6\u70b9\uff0c\u5982\u679c\u4f60\u5728\u770b\u5b8c\u672c\u7bc7\u6587\u7ae0\u540e\uff0c\u6709\u66f4\u597d\u7684\u5efa\u8bae\u6216\u8005\u53d1\u73b0\u54ea\u91cc\u6709\u95ee\u9898\uff0c\u5e0c\u671b\u5927\u5bb6\u90fd\u80fd\u79ef\u6781\u8bc4\u8bba\u6307\u51fa\uff0c\u8c22\u8c22\uff01\u5e0c\u671b\u6211\u4eec\u80fd\u4e00\u8d77\u52a0\u6cb9\u8fdb\u6b65\uff01<\/p>\n

MySQL\u662f\u4e00\u4e2a\u5e7f\u6cdb\u4f7f\u7528\u7684\u5173\u7cfb\u578b\u6570\u636e\u5e93\u7ba1\u7406\u7cfb\u7edf\uff0c\u7528\u4e8e\u5b58\u50a8\u548c\u7ba1\u7406\u6570\u636e\u3002\u5728MySQL\u4e2d\uff0c\u5b58\u50a8\u8fc7\u7a0b\u662f\u4e00\u7ec4\u9884\u5148\u5199\u597d\u7684SQL\u8bed\u53e5\uff0c\u53ef\u4ee5\u5728\u9700\u8981\u65f6\u901a\u8fc7\u8c03\u7528\u6267\u884c\u3002\u6709\u65f6\u5019\u6211\u4eec\u53ef\u80fd\u9700\u8981\u5220\u9664\u4e0d\u518d\u4f7f\u7528\u7684\u5b58\u50a8\u8fc7\u7a0b\u3002\u672c\u6587\u5c06\u4ecb\u7ecd\u5982\u4f55\u5728MySQL\u4e2d\u5220\u9664\u5b58\u50a8\u8fc7\u7a0b\uff0c\u5e76\u7ed9\u51fa\u5177\u4f53\u7684\u4ee3\u7801\u793a\u4f8b\u3002<\/p>\n

\u5220\u9664\u5b58\u50a8\u8fc7\u7a0b\u7684\u65b9\u6cd5\u4e3b\u8981\u6709\u4e24\u79cd\uff1a\u4f7f\u7528DROP PROCEDURE\u8bed\u53e5\u548c\u4f7f\u7528DELIMITER\u8bed\u53e5\u914d\u5408\u4f7f\u7528DROP PROCEDURE\u8bed\u53e5\u3002\u4e0b\u9762\u5c06\u9010\u4e00\u4ecb\u7ecd\u8fd9\u4e24\u79cd\u65b9\u6cd5\u3002<\/p>\n

\u4e00\u3001\u4f7f\u7528DROP PROCEDURE\u8bed\u53e5\u5220\u9664\u5b58\u50a8\u8fc7\u7a0b<\/p>\n

DROP PROCEDURE\u8bed\u53e5\u7528\u4e8e\u5220\u9664MySQL\u4e2d\u7684\u5b58\u50a8\u8fc7\u7a0b\u3002\u5176\u8bed\u6cd5\u5982\u4e0b\uff1a<\/p>\n

DROP PROCEDURE [IF EXISTS] procedure_name;<\/p>\n

\u5176\u4e2d\uff0cIF EXISTS\u662f\u53ef\u9009\u7684\uff0c\u8868\u793a\u5982\u679c\u5b58\u50a8\u8fc7\u7a0b\u4e0d\u5b58\u5728\u4e5f\u4e0d\u4f1a\u53d1\u751f\u9519\u8bef\u3002<\/p>\n

\u4ee5\u4e0b\u662f\u4f7f\u7528DROP PROCEDURE\u8bed\u53e5\u5220\u9664\u5b58\u50a8\u8fc7\u7a0b\u7684\u5177\u4f53\u793a\u4f8b\uff1a<\/p>\n

— \u5220\u9664\u540d\u4e3amy_procedure\u7684\u5b58\u50a8\u8fc7\u7a0b
DROP PROCEDURE my_procedure;<\/p>\n

— \u5220\u9664\u5b58\u50a8\u8fc7\u7a0b\u5e76\u589e\u52a0IF EXISTS\u9009\u9879
DROP PROCEDURE IF EXISTS my_procedure;<\/p>\n

\u4e8c\u3001\u4f7f\u7528DELIMITER\u8bed\u53e5\u914d\u5408\u4f7f\u7528DROP PROCEDURE\u8bed\u53e5\u5220\u9664\u5b58\u50a8\u8fc7\u7a0b<\/p>\n

\u6709\u65f6\u5019\uff0c\u5b58\u50a8\u8fc7\u7a0b\u4e2d\u7684SQL\u8bed\u53e5\u4f7f\u7528\u4e86\u5206\u53f7\uff08;\uff09\u4f5c\u4e3a\u8bed\u53e5\u7ed3\u675f\u7684\u6807\u5fd7\uff0c\u800c\u5728MySQL\u4e2d\uff0c\u5206\u53f7\u4e5f\u7528\u4e8e\u6807\u8bb0\u4e00\u6bb5SQL\u8bed\u53e5\u7684\u7ed3\u675f\u3002\u4e3a\u4e86\u907f\u514d\u9020\u6210\u51b2\u7a81\uff0c\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528DELIMITER\u8bed\u53e5\u5c06\u5206\u53f7\u7684\u542b\u4e49\u66f4\u6539\u4e3a\u5176\u4ed6\u5b57\u7b26\uff0c\u7136\u540e\u518d\u4f7f\u7528DROP PROCEDURE\u8bed\u53e5\u5220\u9664\u5b58\u50a8\u8fc7\u7a0b\u3002<\/p>\n

\u4ee5\u4e0b\u662f\u4f7f\u7528DELIMITER\u8bed\u53e5\u914d\u5408\u4f7f\u7528DROP PROCEDURE\u8bed\u53e5\u5220\u9664\u5b58\u50a8\u8fc7\u7a0b\u7684\u5177\u4f53\u793a\u4f8b\uff1a<\/p>\n

— \u8bbe\u7f6eDELIMITER\u4e3a$$
DELIMITER $$
— \u5220\u9664\u5b58\u50a8\u8fc7\u7a0b
DROP PROCEDURE IF EXISTS my_procedure $$
— \u6062\u590dDELIMITER\u4e3a\u9ed8\u8ba4\u503c\u5206\u53f7
DELIMITER ;<\/p>\n

\u901a\u8fc7\u4ee5\u4e0a\u4e24\u79cd\u65b9\u6cd5\uff0c\u6211\u4eec\u53ef\u4ee5\u5728MySQL\u4e2d\u5220\u9664\u4e0d\u518d\u4f7f\u7528\u7684\u5b58\u50a8\u8fc7\u7a0b\u3002\u6839\u636e\u5b9e\u9645\u60c5\u51b5\u9009\u62e9\u5408\u9002\u7684\u65b9\u6cd5\uff0c\u53ef\u4ee5\u6839\u636e\u9700\u8981\u9009\u62e9\u662f\u5426\u589e\u52a0IF EXISTS\u9009\u9879\uff0c\u4ee5\u53ca\u662f\u5426\u4f7f\u7528DELIMITER\u8bed\u53e5\u3002<\/p>\n

\u5e0c\u671b\u672c\u6587\u63d0\u4f9b\u7684\u5177\u4f53\u4ee3\u7801\u793a\u4f8b\u80fd\u591f\u5e2e\u52a9\u4f60\u6210\u529f\u5220\u9664MySQL\u4e2d\u7684\u5b58\u50a8\u8fc7\u7a0b\u3002\u5982\u679c\u4f60\u6709\u4efb\u4f55\u5176\u4ed6\u5173\u4e8eMySQL\u7684\u95ee\u9898\uff0c\u6b22\u8fce\u968f\u65f6\u63d0\u95ee\u3002<\/p>\n

\u4eca\u5929\u5173\u4e8e\u300a\u5982\u4f55\u5728MySQL\u4e2d\u5220\u9664\u5b58\u50a8\u8fc7\u7a0b\u300b\u7684\u5185\u5bb9\u5c31\u4ecb\u7ecd\u5230\u8fd9\u91cc\u4e86\uff0c\u662f\u4e0d\u662f\u5b66\u8d77\u6765\u4e00\u76ee\u4e86\u7136\uff01\u60f3\u8981\u4e86\u89e3\u66f4\u591a\u5173\u4e8e\u5b58\u50a8\u8fc7\u7a0b\u5220\u9664\u7684\u5185\u5bb9\u8bf7\u5173\u6ce8\u4e3b\u673a\u5b9d\u8d1d\u516c\u4f17\u53f7\uff01<\/p>\n

\n
\n <\/dt>\n<\/dl>\n","protected":false},"excerpt":{"rendered":"

\u5982\u4f55\u5728MySQL\u4e2d\u5220\u9664\u5b58\u50a8\u8fc7\u7a0b ...<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[101],"tags":[],"class_list":["post-199678","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/199678","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=199678"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/199678\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=199678"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=199678"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=199678"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}